磨料水射流辅助与常规工况下滚刀破岩特性对比研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (12) : 333-340.

论文

张金良1, 2，罗星臣3，杨风威1, 2，傅杰4，夏毅敏3，罗南川3

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A comparative study on rock breaking by a disc cutter under abrasive water jet-assisted and conventional working conditions

ZHANG Jinliang1, 2, LUO Xingchen3, YANG Fengwei1, 2, FU Jie4, XIA Yimin3, LUO Nanchuan3

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文章历史 +

摘要

为了研究磨料水射流辅助与常规工况下滚刀破岩特性的差异性，开展了两种工况下的破岩实验，对比分析了不同切削间距下岩石破碎状态、破岩载荷以及破岩效率的差异性。研究结果表明：相较于传统滚刀破岩，磨料水射流辅助滚刀破岩可提高滚刀贯入硬岩的能力，促使裂纹在岩体内部的拓展，产生大尺寸岩渣。磨料水射流辅助下滚刀垂直力和滚动力均明显低于常规滚刀破岩，平均下降了39%和25%，同时，磨料水射流辅助下滚刀破岩量增多，破岩效率进一步提高，约为常规滚刀破岩效率的1-2倍。研究结果为提高硬岩地质条件下滚刀破岩性能，实现隧道掘进机（tunnel boring machine，TBM）的高效掘进提供参考。

Abstract

To compare the rock-breaking characteristics of disc cutter under abrasive water jet-assisted and conventional working conditions, rock-breaking experiments under two working conditions were carried out. The differences in the rock-breaking state, disc cutter load, and rock-breaking efficiency were compared and analysed. The results show that compared with conventional rock-breaking of disc cutter, the rock-breaking of disc cutter under abrasive water jet-assisted can improve the ability of disc cutter to penetrate the hard rock, promote the expansion of cracks inside the rock interior, thereby generating large-size rock chip. The vertical and rolling force of the disc cutter under abrasive water jet-assisted is significantly lower than that of the conventional disc cutter rock breaking, with an average decrease of 39% and 25%. In addition, the amount of rock-breaking by disc cutter under abrasive water jet-assisted increases, and the rock-breaking efficiency is further improved, which is 1-2 times that of conventional rock-breaking of disc cutter. The research results provide a reference for improving the rock-breaking performance of disc cutters under hard rock geological conditions and efficient excavation of TBM.

导出引用

张金良1, 2，罗星臣3，杨风威1, 2，傅杰4，夏毅敏3，罗南川3. 磨料水射流辅助与常规工况下滚刀破岩特性对比研究[J]. 振动与冲击, 2023, 42(12): 333-340

ZHANG Jinliang1, 2, LUO Xingchen3, YANG Fengwei1, 2, FU Jie4, XIA Yimin3, LUO Nanchuan3. A comparative study on rock breaking by a disc cutter under abrasive water jet-assisted and conventional working conditions[J]. Journal of Vibration and Shock, 2023, 42(12): 333-340

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